Trends in Science Achievement
TIMSS 2015 is the sixth assessment of TIMSS. Differences in average science achievement are presented for the countries that have comparable data from the previous TIMSS assessments in 1995, 1999, 2003, 2007, and 2011.
© 2016 TIMSS & PIRLS International Study Center, Lynch School of Education, Boston College, and
International Association for the Evaluation of Educational Achievement. All rights reserved.